When you turn on the game there are two choices. Choose "Audience Mode". You can use L or R to change which Electroplankton to see. Choose "Volvoice", the option one that distorts and changes the things you say. Make sure he is on regular, and not a different distorted voice. He will on occasion automatically say strange things.
Electromasterpiece
Note: This is for the Japanese version of the game. In Hanenbow, set the cannon leaf to 67 degrees and the top-left leaf to 123 degrees. You get a flower in like 30 seconds.